Sectional-post binder.



R. KRUMIVIING.

SECTIONAL POST BINDER.

APPLICATION FILED DEC 16, 19M.

1 9 1 %3,? 1 u Patented June 22, 1915.

T i i L lmgmlxxxi Iilhl fiTATlEfi PATEIV QFFIE REINHOLD KRUMIVIING, OFMILWAUKEE, VJISCONSIN.

SECTIGNAL-POST BINDER.

intents.

Application filed December 16, 1914.

To all whom it may concern Be it known that I, REINI-IoLD KRUM- MING, acitizen of the United States, residing at Milwaukee, Wisconsin, haveinvented [certain new and useful Improvements in Sectional-Post Binders,of which the following is a specification.

This invention relates to improvements in sectional post binders.

The main object of this invention is to provide in a sectional postbinder an improved sectional post in which the removable sections areadapted as keys for use in removing any other removable section ordisconnecting the removable sections at any joint.

Further objects, and objects relating to structural details, willdefinitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearlyillustrated in the accompanying drawing forming a part of thisspecification, in which:

Figure I is a plan view of a binder embodying the features of myinvention, the top cover being omitted. Fig. II is a detail longitudinalsection through the binder on a line corresponding to line 22 of Fig. I,the post being shown in full lines. Fig. III is an enlarged detail viewpartially in vertical section on a line corresponding to line 3-3 ofFig. II. Fig. IV is a detail view of a modified structure in which thebinding bar key is adapted as a key for disengaging the post sections.Fig. V is a detail view corresponding to Fig. III, partially in verticalsection, of a modification in which the top section is adapted to bereleased by the binding bar key, the key extensions: as shown in Fig.III being omitted from the removable post sections.

In the drawing similar reference characters refer to similar partsthroughout the several views, and the sectional views are taken lookingin the direction of the little arrows at the ends of the section lines.

Referring to the drawing, the binder illustrated consists of a bottomcover 1 hinged to the bottom binding bar 2. The top binding bar 3 ischambered to receive the head 4: of the top post section 5 and isprovided Specification of Letters Patent.

Patented Jane 2323, 1915.

Serial No. 877,597.

with a locking slide 6 adapted to engage the head. This slide isactuated by the key 7. As suitable structures of this general type arewell known in the art and as my present improvements do not relatethereto I do not illustrate or describe the same in further dctailherein.

The bottom or base post section 8 is riveted or otherwise rigidlysecured to the bottom binding bar 2. The removable sections 9 and thebase section 8 have longitudinal bores 1G open at the tops thereof. Theremovable sections 9 also have transverse holes 11 therein. Theremovable sections 9 and the top section 5 have reduced threadedportions 12 at their lower ends adapted to be threaded into the bores 10of the adjacent sections, as clearly shown in Fig. III. The removablesections 5 and 9 also have pinlike extensions 13 at their lower endsconstituting key bits adapted to be inserted in the transverse holes 11,whereby one section is adapted as a key for releasing another. The holes11 are disposed below the ends of the pin portions so that a key may beinserted to disengage or tighten the sections at any point. The topsection 5 is provided with a slot 14 in its head adapted to receive theedge of a coin or the edge of one of the finger pieces 15 of the binderbar key 16 where the binder is of the type using keys. By thus arrangingthe parts any of the removable sections may be used as a key forreleasing or in assembling any other section.

In Figs. IV and V, I show a modified form of my invention in which thebinder bar key 16 is provided with a pin-like bit 17 disposed centrallybetween the wings of the finger piece 15 so that it may be inserted inthe holes 11, as shown in Fig. IV. The wings 15 are so spaced that whenthe pin 17 is inserted the inner edges of the wings engage the sides ofthe post sections. This is of advantage in that it prevents the edges ofthe holes of the post becoming burred or roughened by the key. It willbe understood that in practice these post sections are smooth finishedand are usually nickeled or otherwise plated and polished. This smoothfinish is necessary in order to permit the sheets or leaves, indicatedat 18, to slide freely on the posts and without abrading them. Thesmooth finish however makes it difficult to turn the post sections withthe fingers and it is desirable that they should be screwed up tightlyin order to preserve the smooth surface on the post and also to preventtheir becoming accidentally loosened. Where the binder bar key 16' is prvided with a key bit 17 it is not necessary to provide the removablesections with the bit extensions 13, see Fi V. The top section is thenprovided with a hole 13.

My improved sectional post is very convenient to use and is also simpleand economical in structure.

rlaving thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. A. sectional post for loose leaf binders composing a base section anda plurality of removable sections, the sections other than the tophaving central bores open at their tops and the sections other than thetop and base having transverse holes therein, the removable sectionshaving reduced threaded portions at their lower ends adapted to bethreaded into the bores of they adjacent sections and pin-likeextensions constituting bits adapted to be inserted in said transverseholes in said sections whereby one section is adapted as a key forreleasing another, the transverse holes being disposed so that they arebelow the ends of the bits when the sections are assembled;

2. A sectional post for loose leaf binders comprising a base section anda plurality of removable sections, the sections other than the tophaving central bores open at their tops and the sections other than thetop and base having transverse holes therein, the

removable sections having reduced threaded portions at their lower endsadapted to be threaded into the bores of the adjacent sec tions andpin-like extensions constituting bits adapted to be inserted in saidtransverse holes in said sections whereby one section is adapted as akey for releasing another.

8. A sectional post for loose leaf binders comprising a base section anda plurality of removable sections, the sections other than the tophaving central bores open at their tops and the sections other than thetop and base having transverse holes therein, the removable sectionshaving reduced threaded portions at their lower ends adapted to bethreaded into the bores of the adjacent sections and at least one ofsaid removable sections being provided with a pin-like exten sionconstituting a bit adapted to be inserted in said transverse holes insaid sections whereby said section is adapted for use as a key.

l. A sectional post for loose leaf binders comprising a plurality ofremovable sections having central bores open at their tops andtransverse holes therein and reduced threaded portions at their lowerends adapted to be threaded into the bores of the adjacent sections, andat least one of said sections being provided with a pin-like extensionconstituting a bit adapted to be inserted in said transverse holeswhereby said section is adapted for use as a key.

5. A sectional post for loose leaf binders comprising a pair ofsections, one of said sections having a central bore open at the top,and a transverse hole therein and the other a reduced threaded portionat its lower end adapted to be threaded into said bore and a pin-likeextension constituting a bit adapted to be inserted in said transversehole whereby such section is adapted for use as a key.

6. A sectional post for loose leaf binders comprising a plurality ofremovable sections having central bores open at their tops andt'ansverse holes therein and reduced threaded portions at their lowerends adapted to be threaded into the bores of adjacent sections, and akey having outwardly diverging finger pieces and a pin-like bit disposedcentrally between said finger pieces adapted to be engaged in thetransverse holes in said sections, the distance between said fingerpieces being such that they engage the sides of the post when the bit isengaged in a hole.

7. A sectional post for loose leaf binders comprising a plurality ofremovable sections having central bores open at their tops andtransverse holes therein and reduced threaded portions at their lowerends adapted to be threaded into the bores of adjacent sections, and akey having outwardly diverging finger pieces and a pin-like bit adaptedto be engaged in the transverse holes in said sections.

In witness whereof, I have hereunto set my hand and seal in the presenceof two witnesses.

REINHOLD KRUMMING. [n s.]

Witnesses:

EMIL J. ZINGEN, EDMUND J EWENS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, D. G.

